'Understanding' in the Bible

And Ezra the priest brought the law before the congregation, both of men and women, and all that could hear with understanding, on the first day of the seventh month.

And the rest of the people, the priests, the Levites, the doorkeepers, the singers, the Nethinim, and all they that had separated themselves from the peoples of the lands to the law of God, their wives, their sons and their daughters, every one having knowledge and having understanding,